Are you thinking of a duplex?
The two words that have been shortened and joined together are Micro and Scope
The two words that make up the word Ecoregion are Ecological Region.
A molecule.
Molecules
Chemical Bond
When two shapes are joined together, it is called a composite shape.
The word blue in french is bleu and the word for blood is sang so i suppose them two joined together
A maisonette is also called a duplex i.e, two apartments/flats/houses joined together and sharing a common block of land.
Yes, "grandfather" is a compound word made up of the two words "grand" and "father" joined together.
A group of hourses are called gaggle or flock
The term for two pieces of wood joined together is "wood joinery."
A row of houses all joined together is typically referred to as a "terraced" or "row" housing. This type of housing is characterized by a continuous row of identical or similar houses that share side walls. Terraced housing is a common urban housing style in many countries and is often seen in densely populated areas.